#4D1798
Closest named color: Imperial Purple (#480CA8). oklch(37.8% 0.187 294.2), rgb(77, 23, 152).
Aa
White text reads best on this color (11.10:1).
About this color
#4D1798 is a dark, vivid purple. In OKLCH its lightness is 38%, its chroma 0.187 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Imperial Purple (#480CA8), ΔE 0.030 away. White text reads best on it, at 11.10:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | vivid (0.187) |
| Temperature | in between |
| Nearest name | Imperial Purple (#480CA8) |
| Black text | 1.89:1 |
| White text | 11.10:1 |
Values
| HEX | #4D1798 |
| RGB | rgb(77, 23, 152) |
| HSL | hsl(265, 74%, 34%) |
| OKLCH | oklch(37.8% 0.187 294.2) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #4D1798 | 11.10:1 | AAA | Lc -98.4 | Preferred for body text |
| Black text on #4D1798 | 1.89:1 | Fails | Lc 9.5 | Not readable |
| #4D1798 text on white | 11.10:1 | AAA | Lc 94.4 | Preferred for body text |
| #4D1798 text on black | 1.89:1 | Fails | Lc -8.2 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 900.
-
Step 50
50
#F6F4FF
oklch(97.2% 0.015 294.5)
-
Step 100
100
#EBE6FF
oklch(93.6% 0.034 294.9)
-
Step 200
200
#DBD2FF
oklch(88.5% 0.062 294.3)
-
Step 300
300
#C4B3FF
oklch(80.8% 0.107 294.1)
-
Step 400
400
#A888FF
oklch(70.7% 0.17 294)
-
Step 500
500
#9562FF
oklch(63% 0.222 294)
-
Step 600
600
#852EFF
oklch(55.6% 0.275 294)
-
Step 700
700
#7300E6
oklch(49.1% 0.271 294)
-
Step 800
800
#5F00BF
oklch(42.8% 0.236 294.3)
-
Step 900
900 (this color)
#4D1798
oklch(37.8% 0.187 294.2)
-
Step 950
950
#2C1259
oklch(27% 0.118 293.6)
#4D1798 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #003D9B | 0.105 |
| Deuteranopia (no green cones) | #003996 | 0.103 |
| Tritanopia (no blue cones) | #363E5A | 0.143 |
| Achromatopsia (no color) | #3C3C3C | 0.188 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D1798
#4D1798
oklch(37.8% 0.187 294.2)
- #424600
#424600
oklch(37.8% 0.084 113.4)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #4D1798, closest first.
No curated palette has a color within ΔE 0.04 of #4D1798.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Imperial Purple #480CA8 ΔE 0.030
- Chrysanthemum #560BAD ΔE 0.037
- Indigo #4B0082 ΔE 0.047
- Indigo Blue #3A18B1 ΔE 0.058
- Rebecca Purple #663399 ΔE 0.073
- Dark Slate Blue #483D8B ΔE 0.075
- Royal Purple #4B006E ΔE 0.079
- Violet Blue #510AC9 ΔE 0.080
Use #4D1798 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.